diff --git a/java/google/registry/ui/soy/registrar/SecuritySettings.soy b/java/google/registry/ui/soy/registrar/SecuritySettings.soy
index bbaa873fa..8923ccf3c 100644
--- a/java/google/registry/ui/soy/registrar/SecuritySettings.soy
+++ b/java/google/registry/ui/soy/registrar/SecuritySettings.soy
@@ -18,7 +18,7 @@
 /** Registrar security settings page for view and edit. */
 {template .settings}
   {@param ipAddressWhitelist: list<string>}
-  {@param phonePasscode: string}
+  {@param? phonePasscode: string}
   {@param? clientCertificate: string}
   {@param? clientCertificateHash: string}
   {@param? failoverClientCertificate: string}
diff --git a/java/google/registry/ui/soy/registrar/WhoisSettings.soy b/java/google/registry/ui/soy/registrar/WhoisSettings.soy
index 3fed68098..1c5a1fec9 100644
--- a/java/google/registry/ui/soy/registrar/WhoisSettings.soy
+++ b/java/google/registry/ui/soy/registrar/WhoisSettings.soy
@@ -19,8 +19,8 @@
 /** Registrar whois settings page for view and edit. */
 {template .settings}
   {@param clientIdentifier: string}
-  {@param ianaIdentifier: int}
-  {@param icannReferralEmail: string}
+  {@param? ianaIdentifier: int}
+  {@param? icannReferralEmail: string}
   {@param readonly: bool}
   {@param? whoisServer: string}
   {@param? url: string}